Finding the Fourth Proportional to 8,996.28, 12,415.50 and 5,272.44

Step by Step Solution

1. Step 1: Write the proportion equation
   8,996.28 : 12,415.50 = 5,272.44 : x
2. Step 2: Convert to fraction form
   8,996.28/12,415.50 = 5,272.44/x
3. Step 3: Cross multiply
   8,996.28x = 12,415.50 × 5,272.44
4. Step 4: Simplify right side
   8,996.28x = 65,459,978.82
5. Step 5: Solve for x
   x = 65,459,978.82/8,996.28
6. Step 6: Final answer
   x = 7,276.34